You and some friends have $30. you want to order large pizzas that are $9 each and drinks that cost $1 each. define variables and write an inequality that shows how many pizzas and drinks you can order?

The inequality which represents number of pizza and drinks which can be ordered is  .

Step-by-step explanation:

Given:

Cost of Pizza's = $9

Cost of drink = $1

Total Money = $30

Let the number of Pizza be x

Also let the number of drinks be y

Since pizza and drink has to be bought within the money they have.

Hence The sum of Cost of pizza multiplied with number of pizza and Cost of drink multiplied with number of drinks should be less than or equal to Total Money.

Framing in equation form we get;

Hence The inequality which represents number of pizza and drinks which can be ordered is  .

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.